Lesson 4.11:
Algebra-Find Sums for 3 Addends: What are some ways to add 3 numbers?
2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.
Algebra-Find Sums for 3 Addends: What are some ways to add 3 numbers?
2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.